baber/WOPTO huggingface dataset:
Patent GB-219297-A (GB)
Title: Improvements relating to multi-stage air injectors for use with steam condensers
IPC: F01B25/00
Filed: 1924-07-04
Abstract: 219,297. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Smith, J. H.). July 16, 1923, [Convention date]. Aspirating - apparatus, ejector. - A multiplestage ejector for removing air &c. from con. densers and of the kind comprising two steamoperated air ejectors in series with an intercooler arranged between is provided with means to supply to the whole or to part of the intercooler either a single cooling medium, such as condensate from the hot well, or one cooling medium such as condensate to one part of the intercooler and another cooling medium such as cold water to the other part. In the arrangement shown, exhaust steam is delivered to the condenser 10 and condensate from the hot well 53 communicates with a cooling device 19 arranged between the ejectors 14, 47. Air from the condenser is withdrawn by the ejector 14 supplied with steam by a pipe 15 and is delivered through a pipe 24 into the cooling chamber 22 which forms the firststage intercooler. The second ejector 47 withdraws air from the chamber 22 through a pipe 26 and delivers it through a pipe 25 to the upper cooling chamber 23 forming the second-stage cooler. Operating under normal conditions with the valves 58, 66 open and the valves 61, 67 closed, the pump 55 discharges condensate through a pipe 56 to both compartments 39, 40 of the inlet water box 36, whence it passes through the cooling tubes 35 to the outlet water box 37 and is discharged through the pipe 70 back to the hot well. By closing the valves 58, 66 and opening the valves 61, 67, the condensate is discharged from the pump only to the compartment 39 of the inlet water box 36, but the tubes 35 which are in communication with the compartment 40 are supplied through the pipe 62 with colder water that passes through the tubes to the outlet pipe 45 and is discharged from the system through the pipe 68. By this arrangement, the mixed steam and air may be cooled progressively in passing over the tubes in both the upper and lower cooling compartments.
Patent GB-1279540-A (GB)
Title: A method and apparatus for blending powders or liquids
Inventor: SMITH E A
IPC: B01F11/00
Filed: 1970-04-06
Abstract: 1279540 Vibratory mixers E A SMITH 19 April 1971 [6 April 1970] 16112/70 Heading B1C Materials, e.g. powders or liquids, are blended together, in the case of powders without substantial reduction of particle size, as they pass through a tube 1 loosely charged with vibrated balls 6. The tube is coupled to a vibrator 9, is preferably straight, and can be set up in a supporting frame so that it can be inclined to the vertical in order that the rate of flow of materials through the tube can be varied. The vibrator, an out of balance motor, and the tube are supported in resilient mounts 2 secured to the frame 3. The tube, when vibrated, can be caused to move in either a circular or an elliptical path. The balls 6 are retained in the tube by grids 7 or between the flights of a helical member positioned in the tube to prolong the path of travel of the materials in the tube.
Patent GB-650505-A (GB)
Title: A process for the coagulation of dispersions of substances of high molecular weight
IPC: C08C1/15
Filed: 1948-06-15
Abstract: Aqueous dispersions of ethenoid polymers and copolymers, particularly those obtained by the polymerization of vinyl chloride in the emulsified state, are coagulated by a process in which a mixture of one or more alcohols and one or more esters, ketones, halogenated hydrocarbons, ethers or acetals is employed as coagulant, which mixture under the conditions of coagulation is liquid, miscible with water to a limited extent only and does not, or does not substantially dissolve the dispersed substance, so much of the mixture being added as to cause a separate phase to be formed, the volumetric ratio of the mixture added as a coagulant and the dispersion and the ratio of the components in the added mixture being selected in such a manner as to ensure a clear water phase upon settlement of the coagulum.  The alcohol may be isoamyl alcohol or iso-butyl alcohol, the ester may be n-butyl acetate, tricresyl phosphate, dibutyl phthalate or dioctyl phthalate, the ketone may be methyl ethyl ketone, isobutyl ketone, mesityl oxide or cyclohexanone and the halogenated hydrocarbon may be dichloro-ethane, trichloro-ethane or chlorinated diphenyl.  The use of a plasticizer such as tricresyl phosphate as one of the components of the coagulant is preferred. The process may be varied by adding the constituents of the coagulant separately to the dispersion, the alcohol being preferably introduced last, or there may be first added a greater quantity of coagulant than is required, part of it being then removed by distillation.
Patent GB-579165-A (GB)
Title: Improvements relating to the protection of magnesium and magnesium-rich alloys against corrosion
IPC: B05D7/00
Filed: 1942-11-14
Abstract: 579,165. Coating surfaces. ESSEX AERO, Ltd., CROSS, R. J., and MAILLARD, E. F. Nov. 14, 1942, No. 16137. [Class 95] Articles of magnesium, or of magnesium-rich alloys, are protected against corrosion by first treating them with a dilute nitric acid solution of an alkali metal nitrate and an alkali metal dichromate and, after the resultant film has dried, treating them with a coating composition containing an oil-soluble phenol-formaldehyde synthetic resin, and finally drying with or without heating. The coating composition may contain also a water-repellant material such as stearic acid or aluminium stearate, and a baking temperature of 130‹-250‹C. may be used. Before treatment to produce the initial film, the surfaces may be cleaned with phosphoric or nitric acid. Specification 579,164, [Group II], is referred to.
Patent GB-1426287-A (GB)
Title: Photographic film
IPC: G03C1/85
Filed: 1973-04-04
Abstract: 1426287 Antistatic coating G A F CORP 4 April 1973 [10 Aug 1972] 16193/73 Heading B2E [Also in Division G2] An antistatic layer for a photographic film support contains a compound of the general formula:- where R is a cycloaliphatic group of 5 to 8 C, R' and R" are alkyl of up to 3 C and Y is a normal primary aliphatic hydrocarbon group of 8-20 C, the layer having been applied from a solution of said compound in one or more organic solvents, e.g. methanol, ethanol, acetone or ethylene glycol monomethyl ether. The preferred compound is diethylcyclohexylamine lauryl sulphate. The support may carry a lightsensitive gelatino silver halide emulsion layer on the opposite side to the antistatic layer.
Patent GB-416394-A (GB)
Title: Improvements in or relating to pantograph current collectors for electric locomotives and the like
IPC: B60L5/30
Filed: 1933-06-06
Abstract: 416,394. Pantograph collectors for electric vehicles. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and WOOD, H. B., 24, Parkfield Avenue, Silverhill Road, Bradford Moor, Yorkshire. June 6, 1933, No. 16199. [Class 104 (iii).] In a pantograph collector of the kind in which the lower arms 5 are biassed towards each other by springs 13, the springs are arranged outside the frame formed by the pantograph arms, and have their ends connected by chains &c. to members 6<a> directly secured to or formed integral with the lower ends of the arms 5.
Patent GB-743803-A (GB)
Title: Improvements in or relating to telescopic standards or brackets for supporting electric lamps or other fittings
IPC: F21V21/26
Filed: 1953-06-12
Abstract: 743,803. Stands ; collapsible brackets. SLUTZKY, N. J. June 11, 1954 [June 12, 1953], No. 16240/53. Class 52(5). A telescopic support for an electrical device such as a lamp comprises a rigid tubular member having one end curved on a large radius and telescopically receiving a resiliently flexible tube, the lamp &c. being carried by the projecting end of the flexible tube and being maintained at any desired position of extension by the friction arising between the flexible tube, in tending to straighten, and the inside of the rigid tube. As shown, in a support as disclosed in Specification 732,984, which includes a metal, tubular member 1 having an end member 2 selectively positioned in a bracket 10 by the engagement of flanges on a collar 9 with a radially projecting helix on the member 2, the outer end of the rigid tubular extension 3 is curved at 31 on a large radius and telescopically receives a resilient helical spring 16 through which pass electrical leads to the lamp 4. The spring 16 bears on balls or rollers in a collar 17 screwed to the end of the tube 3 and carries a stop at its inner end which abuts the end of a slot 21 in the tube 3 to prevent disengagement of the telescoping parts. In modifications the stop is a flexible sleeve of self-adhesive tape or a hollow plug having radially projecting screws engaging internal grooves in the tube 3 and the spring 16 has a stiffening, tubular lining of plastic or flexible spring steel.
Patent GB-569830-A (GB)
Title: Improvements in or relating to means for suspending t-section strips, laths, and thelike from purlins and other structural members
IPC: E04B9/18
Filed: 1943-10-04
Abstract: 569,830. Making devices for suspending strips from purlins &c. FORD, W. G. Oct. 4, 1943, No. 16251. [Class 83 (ii)] [Also in Group X] A suspension device, particularly for suspending T-section strips or laths from purlins, comprises a strap 10 having one end shaped by a winding operation to form a pin 26, Fig. 3, extending laterally of the strap so that it can be inserted in a hole 24 of the lath 22 or the like to be suspended. The strip shown has a lateral slit 12 which opens as shown into an aperture 14, the latter being extended by a slit 17, and forming with the slit 12 a tongue 18. In applying the device, the tongue is first bent up as shown in Fig. 3, the pin formed by winding up the base of the strip is passed through the bole 24, and the tongue is then bent back into its original position to hold the lath in position. In a modification the slit 17 is dispensed with, and in another modification, Figs. 7 and 8 (not shown), the arrangement is such that the tongue can be wound around the pin 26, thus firmly holding the pin to the lath.
Patent GB-553614-A (GB)
Title: Improvements in or connected with fire-places
IPC: F24B1/19
Filed: 1941-12-16
Abstract: 553,614. Fireplaces. DUNN, A. Dec. 16, 1941, No. 16261. [Class 126] Air drawn from outside the room is heated by passage through a shallow covered chamber of relatively large horizontal area arranged under the fire or hearth and is discharged to or near to the combustion zone. In Figs. 1 and 2 a pentagonal fireclay tray 5 underneath the fire is fitted with a metal coverplate 6 having depending baffles 10 to form an air preheating chamber c' which communicates at the back of the fireplace with a second chamber c' formed between a fireclay tray 1 and superposed slabs 2, 3. Air drawn from beneath the hearth A passes through an opening 7 at the front of the tray 5 between the central baffles 10 to the chamber c<SP>2</SP> returns between the central and side baffles 10, and enters passages 8 at the sides of the tray 5 connected to vertical passages 12 discharging at slots 13 adjacent the grate B. In another construction the preheated air is discharged through an adjustable louvred opening in the upper surface of a box flush with the front of the fireclay 'bottom of a fireplace of the slow combustion sunk type. An ashtray may be provided in the air box.
Patent GB-884589-A (GB)
Title: Improvements in or relating to electric control systems for sewing machines
IPC: D05B51/00
Filed: 1958-05-21
Abstract: 884,589. Sewing-machines. PFAFF A.G., G. M. May 21, 1958 [May 22, 1957], No. 16270/58. Class 112 A sewing machine has a control member having two fingers extending one each side of the needle in the stitching direction, the engagement of either of the fingers by the upper thread upon its failure to interlock with the lower thread causing stoppage of the machine. The control lever 9 is pivoted at 10 to an extension bar 5 carried on the presser bar. The two fingers 13, 14 are provided on the lower arm of the lever, the upper arm carrying a contact 17 urged, by a spring 18, towards an insulated contact 8, carried on the bar 5, either finger, according to the direction of stitching, being deflected by the slanting portion of the upper thread when the latter fails to interlock with the lower thread, the contacts 8 and 17 then parting to stop the machine. During the operation of the thread cutting knife the blade 23 contacts the bent tip 15 of the finger 14 to open the contacts and prevent the operation of the machine drive. A control circuit for the sewing machine, Fig. 4, includes both the normally closed contacts 8, 17 of the invention and also the normally open contacts 90 of a device, such as that described in Specification 826,488, for monitoring the upper thread. The machine is started by the momentary operation of a foot switch 69 to energize the starting lever solenoid 74, the movement of the lever first opening the contacts of switch 56 to de-energize the relay A and then closing the contacts to energize the oppositely wound, balanced relay coils 54, 76, the latter through the closed contacts 8, 17. Failure of the lower thread causes the upper thread to actuate one of the fingers 13, 14 to open contacts 8, 17, when coil 76 is de-energized and the now unbalanced coil 54 operates the relay A to close the contacts 3a, a relay hold-on circuit being established through relay contact 1a and hence light the warning lamp 84 and actuate the machine stop motion device solenoid 77 through the switch contacts 71, 83 and the switch 80 respectively both switches being closed when the machine is running. An interrupter switch 81 actuable by the stop motion device is provided to permit the solenoid 77 to actuate a stop motion device requiring two successive operations to stop the machine. Alternatively failure of the upper thread when the machine is running closes the switch 90, the capacitor 92 then being charged through the synchronous contact 91 and energizing the relay coil 58 to operate the relay A. The machine is stopped as before by the relay contacts 3a completing the circuit of the stop device and the capacitor is discharged through the relay contacts 4a.
Patent GB-1357414-A (GB)
Title: Device for the adjustment of the suspension and height of a  seat more particularly a vehicle seat
IPC: B60N2/54
Filed: 1971-05-21
Abstract: 1357414 Resiliently mounted seats SABLE FRERES INTERNATIONAL 21 May 1971 [11 Dec 19701 16331/71 Heading A4U A resiliently mounted vehicle seat comprises a seat 1 mounted on a support frame, 4 which is guided by two pairs of parallel, pivoted arms 6, 7 for vertical movement under the influence of a main vertical compression spring 14 supported at its ends in cups 15, 16 which are slidable in tubes 17, 18 mounted on the support 4 and on a lower support frame 5 fixed to the chassis, the distance of the cup 15 from the support 4 being adjusted by a manual control knob 23 through a reduction gearing to alter the preload on the spring and adjust the ride height to suit the user's weight, and the distance between the cup 16 and the support 5 being adjusted by operation of a hand lever 35 to adjust the height of the seat. An auxiliary compression spring 50, acting between the cup 16 and the tube 18, and a shock absorber 43 pivoted to the support 4 and to the cup 16, are also provided, an upper stop within the body 44 of the shock absorber and a lower stop 49 fixed to the cup 16 limiting upward movement of the support 4, when unloaded, and downward movement of the support 4, respectively. Pairs of pins 19, 20 project from each cup and pass through vertical slits 21, 22 in the tubes 17, 18, the cup 15 being lowered or allowed to rise under the influence of the spring 14 by the engagement of the pins 19 with cam faces 34 on pivoted levers 33 rotated by the reduction gearing which includes a non-rotatable nut 30 moved along a threaded end of a rod 24 rotated by the knob 23. Pins 20 projecting from the cup 16 are engaged by racks 41 on plates 39 pivoted on the tube 18 and each having a lug 38 engaged by a fork 37 which is rotated against the action of a spring 42 to disengage the pins from the racks by raising the hand lever 35. The setting of the cup 15 is not affected by the setting of the cup 16 and vice versa, the shock absorber, spring 14 and support 4 moving as a unit when the cup 16 is adjusted. The strength of the auxiliary spring 50 is selected so that when the cup 16 is in top position its stress exceeds the weight of the unit but cannot support the added weight of a seated user who operates the lever 35 to release the pins 20 from the racks 41 and to re-engage them when the seat has sunk to a suitable height, and operates the knob 23 to adjust the cup 15 so that, when at rest, the shock absorber is forced down by half of its distance of travel and in use the seat can vibrate equidistantly above and below its position of rest under load before being arrested by the stops. In modifications, the seat is guided by slideways or the axes of levers of a parallel motion linkage are parallel, the spring is other than a coil spring, stops for the seat are provided on the guiding linkages, or the cam and rack devices of the controls are replaced by ratchets. The seat may be longitudinally, slidably adjustable on the support 4.
Patent GB-688120-A (GB)
Title: Data storage system
IPC: G11C21/02
Filed: 1949-06-20
Abstract: 688,120. Electric control systems. ECKERT, J. P., and MAUCHLY, J. W. June 20, 1949, No. 16365/49. Class 40 (i) [Also in Groups XIX and XL(b)] In a data storage system for use in calculating apparatus &c. (see Group XIX) an automatic temperature control is employed. Data - representing pulses generated by an oscillator 222 and pulse shaping tubes 232, 238 are transmitted via a line 254 to other circuits for coding and then circulated through a mercury filled tube 2 as acoustic pulses, passing e.g. from a crystal transducer 56 to a crystal receiver 58. The tube 2 is arranged to contain a precise number of pulse intervals (e.g. 64), and in order to maintain this condition should any change of temperature occur, compensation is provided by automatic adjustment of the oscillator frequency. A series of binary counter elements 242 ... 252 constitute a ¸ 64 frequency divider from which each major cycle pulse is transmitted to a pulse former 266, 272, and thence via a line 282 to a crystal transducer 186 in the mercury tube. These major cycle pulses are also applied to 'a pulse widener 286, 288 and from there via a line 294 to the second control grid of a gate tube 208. The pulses arriving at a receiver crystal 188 after a delay of one major cycle (64 digit pulses) pass through a three-stage amplifier 192, 194, 196 and, after rectification, are applied to the first grid of the gate tube 208. A peak valve voltmeter arrangement between the tubes 208 and 216 provides compensatory adjustment of the oscillator frequency in the event of a temperature change. Thus, if the temperature of the mercury rises the velocity of the acoustic pulses is decreased and a pulse reaching the first grid of the gate tube 208 will be delayed with respect to the pulse on the second grid. This will cause a more negative potential on the grid of the reactance tube 216 so decreasing the frequency of the oscillator.
Patent GB-215622-A (GB)
Title: Means for skimming off froth overlying the surface of liquid
IPC: B03D1/14
Filed: 1923-06-23
Abstract: 215,622. Thornton, A. A., (Vercenigde Steenkolenzaken Gedreven door de Naamlooze Hoven en Henny's Handelmaatschappij). Flotation apparatus. -In means for removing froth from the surface of a liquid of the kind comprising stationary and rotatable co-operating skimming elements, one of which is rigid and the other yieldable, applicable to Kolenmaatschappijen ter Voortzetting der Vennootschap Furness' Kolenmaatschappij en June 23, 1923. apparatus for the concentration of coal by frothflotation, all the elements extend completely across the liquid, and the arrangement is such that the froth is discharged over the outer edge of the vessel. In the form shown, the rotatable element comprises rigid curved blades e dipping below the surface of the liquid in the vessel c, and the stationary element comprises walls f made up of weighted or spring-controlled strips h hanging from rods i and adapted to yield in the direction of rotation of the blades e so that the latter can pass over them, the effect being to force the froth over the outer edge of the vessel c. In modifications, the walls f are rotatable and the rigid blades e fixed; or the blades e may be yieldable and the walls f rigid.
Patent GB-354892-A (GB)
Title: Improvements relating to variable speed gearing
IPC: F16H23/02
Filed: 1931-02-26
Abstract: 354,892. Variable-speed gearing. McDAID, M., 14, Restalrig Terrace, Leith. Feb. 26, 1931, No. 16420/30. [Class 80 (ii).] Variable-speed ratchet gearing comprises a gear wheel 84 oscillated with variable amplitude and meshing with two one-way pinions 80, 81 so that a shaft 76 is driven on the back stroke of wheel 84 as well as on the forward stroke. A circular swash disc 64 is supported between two pivots 65 on arms 63 secured to a driving-shaft 60. The disc 64 is connected by a link 66 to a thrust sleeve 67 on shaft 60 so that as the disc, link, and sleeve rotate with the shaft, the inclination of the disc can be varied by applying thrust to the sleeve. A lever 87 with two bowls 88 bearing on the face of the swash disc is thus variably oscillated and carries with it the wheel 84. The speed of shaft 76 is controlled by turning a spindle 75 which through a screw 70 applies thrust to sleeve 67. An ultimately-driven shaft 61 may be clutched directly to shaft 60, or -driven 'variably through a pair 77, 78, or reversely through an idler 79.
Patent GB-1325416-A (GB)
Title: Golf practice device
Inventor: HALL RICHMOND ERNEST
IPC: A63B69/36
Filed: 1972-04-10
Abstract: 1325416 Golf swing practising device R E HALL 10 April 1972 16425/72 Addition to 1263269 Heading A6D The device for practising a golf swing disclosed in Specification No. 1263269 is modified by the provision of means indicating any deviation of the further arm 4, as it rotates about the substantially horizontal axis of arm 3 when the ball 5 is struck by a club, from a plane perpendicular from the said axis to give an indication of whether the ball has been 'pulled' or 'pushed'. This is done by the arm 4 being pivotally mounted on a screw 9 for movement in a plane transverse to the normal plane of movement of the ball and having an adjustable screw 35 the end of which engages two interlocking levers 25, 26 pivoted to a scale plate 24 and arranged such that if the ball moves out of its normal plane the screw 35 moves the respective lever 25 or 26 to one side and this lever is locked in its displaced position by engagement with the other lever. There may also be provided a detachable putting arm 52 which is rotatably adjustable on the arm 3 to correspond to a desired putt distance. This arm has an indicator slot 60 so that if, when the ball 5 is struck, the rod 64 just engages the slot 60 the putt is 'holed'. A 'short putt' indicator 63 may also be provided which is engaged by the rod 64 and indicates how far short of the hole the putt was. If the rod 64 moves the rod 52 then this indicates the putt was too strong.